Research ArticleOpen accessPhrase in the titleEffects of Rumen-Protected Methionine on Dairy Performance and Amino Acid Metabolism in Lactating CowsW.R. Yang, H. Sun, Q.Y. Wang et al.Problem statement: Free Met as one of the most limiting AA in dairy cows would be mostly degraded in the rumen. This study was to determine the effect of different levels of Rumen-Protected Met (RPMet) on dairy performance and serum amino acid metabolism. Approach: Thirty-six Holstein cows in similar condition were randomly assigned to six experimental treatments with six replicates … …American Journal of Animal and Veterinary Sciences, Vol. 5, Issue 1 · 31 Jan 2010 · 8,262 accessesView PDFCite